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Raslakite

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Formula:
Na15Ca3Fe32+(Na,Zr)3Zr3Nb<0.5[(Cl,OH)|(Si3O9)2|(Si9O27)2SiO] · 3(OH,H2O)
System:
Trigonal
Colour:
brownish red
Hardness:
5
Member of:
Name:
For the Raslak valley, located southwest of the type locality, Mt Karnasurt
Eudialyte Group

Classification of Raslakite

Approved 2002
9.CO.10

9 : SILICATES (Germanates)
C : Cyclosilicates
O : [Si9O27]18- 9-membered rings
64.1.3.2

64 : CYCLOSILICATES Rings with Other Anions and Insular Silicate Groups
1 : Rings with Other Anions and Insular Silicate Groups with mixed ring types
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http://www.mindat.org/min-25687.html
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Type Occurrence of Raslakite

General Appearance of Type Material:
grains to 3 cm across
Geological Setting of Type Material:
alkaline pegmatite

Physical Properties of Raslakite

Vitreous
Diaphaneity (Transparency):
Transparent
Colour:
brownish red
Streak:
white
Hardness (Mohs):
5
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
2.95 g/cm3 (Measured)    

Crystallography of Raslakite

Crystal System:
Trigonal
Class (H-M):
3 - Pyramidal
Cell Parameters:
a = 14.23Å, c = 30.02Å
Ratio:
a:c = 1 : 2.11
Unit Cell Volume:
V 5,264.43 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction Data:
d-spacingIntensity
4.31 (65)
3.21 (60)
2.97 (85)
2.85 (100)

Chemical Properties of Raslakite

Formula:
Na15Ca3Fe32+(Na,Zr)3Zr3Nb<0.5[(Cl,OH)|(Si3O9)2|(Si9O27)2SiO] · 3(OH,H2O)
All elements listed in formula:

Relationship of Raslakite to other Species

Member of:
Other Members of Group:
AlluaiviteNa19(Ca,Mn)6(Ti,Nb)3Si26O74Cl · 2H2O
AndrianoviteNa12(K,Sr,Ce)3Ca6Mn3Zr3Nb(Si25O73)(O,H2O,OH)5
Aqualite(H3O)8(Na,K,Sr)5Ca6Zr3Si26O66(OH)9Cl
CarbokentbrooksiteNa11-12(Na,Ce)3Ca6Mn3Zr3Nb[(OH)3|CO3|(Si3O9)2|(Si9O27)2SiO] · H2O
DavinciiteNa12K3Ca6Fe32+Zr3(Si26O73OH)Cl2
DualiteNa30(Ca,Na,Ce,Sr)12(Na,Mn,Fe,Ti)6Zr3Ti3Mn[Si51O144](OH,H2O,Cl)9
EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
FeklicheviteNa11Ca9(Fe3+,Fe2+)2Zr3Nb[Si25O73](OH,H2O,Cl,O)5
FengchengiteNa123(Ca,Sr)6Fe33+ Zr3Si(Si25O73)(H2O,OH)3(OH,Cl)2
FerrokentbrooksiteNa15Ca6(Fe,Mn)3Zr3NbSi25O73(O,OH,H2O)3Cl2
GeorgbarsanoviteNa12(Mn,Sr,REE)3Ca6Fe32+Zr3NbSi25O76Cl2·H2O
GolysheviteNa10Ca3Ca6Zr3Fe2SiNb(Si3O9)2(Si9O27)2CO3(OH)3 · H2O
Ikranite(Na,H3O)15(Ca,Mn2+)6Fe23+Zr3-4[Cl|(H0-3Si3O9)2|{(Si9O27)2,(Si9O27)2SiO}] · 2-3H2O
Johnsenite-(Ce)Na12(Ce,La,Sr,Ca)3Ca6Mn3Zr3W[(OH,Cl)2|CO3|(Si3O9)2|(Si9O27)2SiO] · H2O
Kentbrooksite(Na,REE)15(Ca,REE)6(Mn2+,Fe2+)3Zr3Nb[Si25O74]F2 · 2H2O
KhomyakoviteNa12Sr3Ca6Fe3Zr3W[Si25O73](O,OH,H2O)3(OH,Cl)2
Labyrinthite(Na,K,Sr)35Ca12Fe3Zr6TiSi51O144(O,OH,H2O)9Cl3
ManganoeudialyteNa14Ca6Mn3Zr3[Si26O72(OH)2](H2O,Cl,O,OH)6
ManganokhomyakoviteNa12Sr3Ca6Mn3Zr3W[Si25O73](O,OH,H2O)3(OH,Cl)2
MogoviditeNa9(Ca,Na)5Ca6Zr3Fe2(Si,Nb)(Si9O27)2(Si3O9)2(CO3)(OH,H2O)3Cl0.3
OneilliteNa15Ca3Mn3Fe32+Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2
RastsvetaeviteNa27K8Ca12Fe3Zr6Si52O144(O,OH,H2O)6Cl2
TaseqiteNa12Sr3Ca6Fe3Zr3Nb[Cl2|(Si3O9)2|(Si9O27)2SiO] · 3(O,OH,H2O)
UM1998-21-SiO:CaCeClHMnNaZrNa16Ca6(Mn,Ce)3Zr3(Si3O9)2(Si9O27)2(OH,Cl)4
VoronkoviteNa15(Na,Ca,Ce)3(Mn,Ca)3Fe3Zr3Si26O72(OH,O)4Cl · H2O
Zirsilite-(Ce)Na11-12(Ce,Na)3Ca6Mn3Zr3Nb(Si19O55)(Si3O9)2(CO3)(OH)3 · H2O
9.CO.10AlluaiviteNa19(Ca,Mn)6(Ti,Nb)3Si26O74Cl · 2H2O
9.CO.10EudialyteNa15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
9.CO.10FerrokentbrooksiteNa15Ca6(Fe,Mn)3Zr3NbSi25O73(O,OH,H2O)3Cl2
9.CO.10Kentbrooksite(Na,REE)15(Ca,REE)6(Mn2+,Fe2+)3Zr3Nb[Si25O74]F2 · 2H2O
9.CO.10KhomyakoviteNa12Sr3Ca6Fe3Zr3W[Si25O73](O,OH,H2O)3(OH,Cl)2
9.CO.10ManganokhomyakoviteNa12Sr3Ca6Mn3Zr3W[Si25O73](O,OH,H2O)3(OH,Cl)2
9.CO.10OneilliteNa15Ca3Mn3Fe32+Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2
9.CO.10FeklicheviteNa11Ca9(Fe3+,Fe2+)2Zr3Nb[Si25O73](OH,H2O,Cl,O)5
9.CO.10CarbokentbrooksiteNa11-12(Na,Ce)3Ca6Mn3Zr3Nb[(OH)3|CO3|(Si3O9)2|(Si9O27)2SiO] · H2O
9.CO.10Zirsilite-(Ce)Na11-12(Ce,Na)3Ca6Mn3Zr3Nb(Si19O55)(Si3O9)2(CO3)(OH)3 · H2O
9.CO.10Ikranite(Na,H3O)15(Ca,Mn2+)6Fe23+Zr3-4[Cl|(H0-3Si3O9)2|{(Si9O27)2,(Si9O27)2SiO}] · 2-3H2O
9.CO.10TaseqiteNa12Sr3Ca6Fe3Zr3Nb[Cl2|(Si3O9)2|(Si9O27)2SiO] · 3(O,OH,H2O)
9.CO.10RastsvetaeviteNa27K8Ca12Fe3Zr6Si52O144(O,OH,H2O)6Cl2
9.CO.10GolysheviteNa10Ca3Ca6Zr3Fe2SiNb(Si3O9)2(Si9O27)2CO3(OH)3 · H2O
9.CO.10Labyrinthite(Na,K,Sr)35Ca12Fe3Zr6TiSi51O144(O,OH,H2O)9Cl3
9.CO.10Johnsenite-(Ce)Na12(Ce,La,Sr,Ca)3Ca6Mn3Zr3W[(OH,Cl)2|CO3|(Si3O9)2|(Si9O27)2SiO] · H2O
9.CO.10MogoviditeNa9(Ca,Na)5Ca6Zr3Fe2(Si,Nb)(Si9O27)2(Si3O9)2(CO3)(OH,H2O)3Cl0.3
9.CO.10GeorgbarsanoviteNa12(Mn,Sr,REE)3Ca6Fe32+Zr3NbSi25O76Cl2·H2O
9.CO.10Aqualite(H3O)8(Na,K,Sr)5Ca6Zr3Si26O66(OH)9Cl
9.CO.10DualiteNa30(Ca,Na,Ce,Sr)12(Na,Mn,Fe,Ti)6Zr3Ti3Mn[Si51O144](OH,H2O,Cl)9
9.CO.10AndrianoviteNa12(K,Sr,Ce)3Ca6Mn3Zr3Nb(Si25O73)(O,H2O,OH)5
9.CO.10VoronkoviteNa15(Na,Ca,Ce)3(Mn,Ca)3Fe3Zr3Si26O72(OH,O)4Cl · H2O
9.CO.10UM1999-36-SiO:CaCeHMnNaNbSrZrNa17(Ca,Ce,Sr)2Mn3(Zr,Nb)4Si25O73(O,OH,F,Cl)5
9.CO.10UM2000-66-SiO:CaClFeHMnNaNbSrZrNa12(Ca,Mn)6(Sr,Na,K)3(Fe,Mn)3(Zr,Nb)4Si25O66(OH,Cl)11
9.CO.10ManganoeudialyteNa14Ca6Mn3Zr3[Si26O72(OH)2](H2O,Cl,O,OH)6
9.CO.10UM1990-78-SiO:CaClFeHKNaZr(H3O)7(Na,K)5(Ca,Sr,Mn)6Zr3[Si3O7(O,OH)2]2[Si9O23(O,OH)4]2[SiNaFe(Zr,Ti,Al,Nb)□]Cl1.5(O,OH)
9.CO.10UM-1990-79-SiO:CaClFeHMnNaNbREEZrNa14Ca5(Mg,Ca,Mn)Zr3(Si3O9)2(Si9O27)2(Si,Nb,Al,Zr)2(Fe,Zr)3(Mn,Na,Ce,La,Y)(Na,H2O,K,Sr)(OH)4-5(OH,Cl)
9.CO.10UM1971-22-SiO:CaClFeHMgMnNaNbZrNa12Ca5(Ce,La,Y,Ca)Zr3(Zr,Nb)(Fe,Mn)3[Si9O24-26(OH)1-3]2[Si3O9]2Cl
9.CO.10UM1998-21-SiO:CaCeClHMnNaZrNa16Ca6(Mn,Ce)3Zr3(Si3O9)2(Si9O27)2(OH,Cl)4

Other Names for Raslakite

Name in Other Languages:
Simplified Chinese:富钠异性石
Traditional Chinese:富鈉異性石

Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Raslakite

Reference List:
Chukanov, N.V., Pekov, I.V., Zadov, A.E., Korovushkin, V.V., Ekimenkova, I.A., Rastsvetaeva, R.K., Khasanov, V.V. (2003): Ikranite and raslakite - new eudyalite-group minerals from the Lovozero massif, Kola Peninsula. Zapiski Vseross. Mineral. Obshch.: 132(5): 22-33.

Lapis (2004): 29(3): 40.

Internet Links for Raslakite

Localities for Raslakite

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Russia (TL)
 
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
        • Lovozero Massif
N. V. Chukanov et al.: ZVMO 132(5):22-33 (2003)
Mineral and/or Locality  
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